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A058955 as a simple table

na(n)
01
1-1
21
30
4-1
5-1
62
71
8-1
9-7
10-37
11368
124981
13-9383
14-1129837
15461
1627108469
1768690009
18-981587473
19-23749507
2031685207789
21231197062
22-394010311399
23-16467167272
24-39133970611597
25424044941703263
26169016775569984281
27-29438912370551

[1,-1,1,0,-1,-1,2,1,-1,-7,-37,368,4981,-9383,
 -1129837,461,27108469,68690009,-981587473,
 -23749507,31685207789,231197062,-394010311399,
 -16467167272,-39133970611597,424044941703263,
 169016775569984281,-29438912370551]